The pie chart above shows the typical content of municipal solid waste (MSW) in the U.S. This chart represents an average amount, based on the year 2006 . Think about the three largest categories in this chart, and then think about your own MSW
Are your largest categories the same as shown here? Are they different? Why? What can you do to cut down on the three largest categories of MSW that you personally generate?
What will be an ideal response
Answers will vary from student to student. Responses should be graded on how well the comparison is made with the chart, and how well thought-out the ideas are for reducing MSW.
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By the end of this century, polar bears might be found only in ___________
Fill in the blanks with correct word
How does the character of a rock influence weathering?
A) Fractures and other discontinuities block the entry of water into a rock and so make the rock more resistant to weathering. B) Minerals that are soluble can be dissolved and reprecipitated and so are resistant to weathering. C) Rocks that are broken have more surface area and so weather faster. D) Rocks that are easily weathered and eroded generally form steep cliffs. E) None of these are correct.
Many wealthy immigrants from Hong Kong began immigrating to Canada after 1997 because ________
Fill in the blank(s) with correct word
The most common component of the atmosphere is
A. particulates. B. aerosols. C. carbon dioxide. D. nitrogen.